TopoQuest Logo
Do you find TopoQuest useful?
Help keep TopoQuest running and adding new maps/features by donating!
Bitcoin:  19c7KJd3qBynnjoSw5npx9KScwjBe4ifkT
Litecoin:  LXs6TkuXGGXo1vDsWCkWVdjQX94eUKd6ui
Home View Maps Find Maps Find Places Resources & Links

Welcome to the TopoQuest Map Viewer!
Mammoth Hill, CO is a summit located in Gilpin County at N39.79582° W105.50750° (NAD83). This is the nearest place in the USGS place names database to the center of the map view below.  Look below the map view for a list of other places and locations that are visible within this map view.  If you need to locate a landmark or feature, you can search for its location on our Find Places page.  If you need to locate a specific USGS topographic map, try our Find Maps page.

USGS Map Name:  Central City, CO    Map MRC: 39105G5
Map Center:  N39.79582°  W105.50750°    Datum: NAD83    Zoom: 4m/pixel

Places Within This Map View:
Place Type Coordinates (click to center)
Mammoth HillSummitN39.79582° W105.50750°
O K MineMineN39.79777° W105.50666°
Brooklyn MineMineN39.79304° W105.50889°
Bobtail HillSummitN39.79249° W105.50639°
Hunter MineMineN39.79943° W105.50722°
Central HillSummitN39.79777° W105.51111°
Buell Shaft MineMineN39.79999° W105.50583°
Springdale MineMineN39.79582° W105.50277°
Little Rebel MineMineN39.79582° W105.50277°
Pocahontas MineMineN39.79582° W105.50277°
Mammoth MineMineN39.79388° W105.51194°
Ute Gold Properties MineMineN39.79110° W105.50861°
McAllister MineMineN39.79943° W105.51111°
Central City Post OfficePost OfficeN39.80007° W105.51111°
Packard GulchValleyN39.80039° W105.50414°
Colorado State Patrol Gilpin County Gaming PostBuildingN39.80083° W105.51096°
Spring GulchValleyN39.79870° W105.51296°
Nevada GulchValleyN39.80054° W105.51157°
Carr MineMineN39.79332° W105.50166°
Cook MineMineN39.79471° W105.50111°
Central City Fire Department Station 1BuildingN39.80076° W105.51174°
Gregory HillSummitN39.79332° W105.50139°
Gilpin County Sheriff's Office - Central City SubstationBuildingN39.79925° W105.51319°
Burlington-Iowa Mine GroupMineN39.79582° W105.51444°
Gladstone MineMineN39.79027° W105.51250°
Bates HillSummitN39.80304° W105.50555°
Central City-Balck Hawk Historic DistrictParkN39.80101° W105.51306°
City of Central CityCivilN39.79649° W105.51518°
Nation MineMineN39.79527° W105.51555°
Bobtail MineMineN39.79749° W105.49916°
Bates MineMineN39.80304° W105.50277°
Missouri City CemeteryCemeteryN39.79044° W105.51429°
Mattie May MineMineN39.78804° W105.50333°
Central CityPopulated PlaceN39.80193° W105.51416°
Notaway East MineMineN39.78804° W105.50250°
Curtis Lode MineMineN39.78860° W105.50166°
Fisk MineMineN39.79860° W105.49861°
West Notaway MineMineN39.78693° W105.50389°
Robert Emmett MineMineN39.80554° W105.50777°
Becker-Bates MineMineN39.80471° W105.50277°
Pittsburgh MineMineN39.78638° W105.50333°
Winnebago HillSummitN39.80527° W105.51194°
Meeker MineMineN39.78749° W105.50111°
Gregory MineMineN39.80165° W105.49805°
Corydon MineMineN39.79665° W105.51861°
Illinois GulchValleyN39.78556° W105.51214°
Masonic CemeteryCemeteryN39.79931° W105.51863°
Leavenworth GulchValleyN39.78800° W105.51651°
R P Ranney MineMineN39.80638° W105.51333°
Center Tunnel MineMineN39.80610° W105.51416°
Silver Dollar MineMineN39.80221° W105.49694°
Specie MineMineN39.80221° W105.49694°
Chase GulchValleyN39.80360° W105.49750°
After Supper MineMineN39.80082° W105.49583°
Gilpin Ambulance Authority Black HawkBuildingN39.80414° W105.49762°
Black Hawk Fire DepartmentBuildingN39.80416° W105.49762°
Silent Friend MineMineN39.80082° W105.49555°
Roderick MineMineN39.79277° W105.52028°
Chase MineMineN39.78277° W105.50583°
Sans Souci MineMineN39.80915° W105.50861°
Castle RockPillarN39.80777° W105.51389°
Quartz Hill Tunnel MineMineN39.79110° W105.52028°
Cherokee MineMineN39.78527° W105.49889°
Black Hawk Police DepartmentBuildingN39.80184° W105.49524°
Black HawkPopulated PlaceN39.79693° W105.49389°
Casto MineMineN39.80860° W105.51305°
Gregory GulchValleyN39.80188° W105.49417°
Black Hawk Post OfficePost OfficeN39.80385° W105.49524°
War Dance MineMineN39.78249° W105.50139°
Hunky Dory MineMineN39.79665° W105.49277°
Prosser GulchValleyN39.80260° W105.52074°
Coeur d'Alene MineMineN39.78527° W105.51805°
Barnes MineMineN39.79110° W105.52166°
Hope MineMineN39.80693° W105.49750°
Grand Army MineMineN39.80082° W105.52166°

Note: Coordinates listed above are datum selected on the sidebar.
Click on map to:
Zoom In Zoom in (x2)
Zoom Out Zoom out (x2)
Pan Re-center

Map contents:
Choose Automatically
Overall Coverage
1:24K Coverage (US)
1:24K Topo maps (US)
1:50K Coverage (Canada)
1:50K Topo maps (Canada)
1:100K Coverage (US)
1:100K Topo maps (US)
1:250K Coverage (US)
1:250K Topo maps (US)
Satellite 1m Coverage (US)
Satellite 1m (US)

Zoom level:
1m per pixel (Sat)
2m per pixel (Sat)
4m per pixel
8m per pixel
16m per pixel
32m per pixel
64m per pixel
128m per pixel
256m per pixel
512m per pixel
1km per pixel
2km per pixel
4km per pixel
10km per pixel

Map Size:
Small'ish (512x512)
Medium Rare (768x768)
Grande! (1024x1024)
Extra Grande! (1280x1280)


Coordinate format:
Nddd.ddd°  Wddd.ddd°
Nddd°mm.m'  Wddd°mm.m'
Nddd°mm' ss"  Wddd° mm' ss"

Draw crosshair at center

Note (5/31/2016) - Want a crosshair at the center coordinates of the map?  A number of people have asked, so that option has been added!

Note (6/26/2013) - Map sizes are now larger, and an extra-large (1280x1280) option has been added as well.

Note (8/18/2010) - The transition to the new TopoQuest server is now complete.  Aside from a glitch that affected the TopoZone alternative map.asp script much of Monday (8/17/2010) afternoon and evening, all went pretty smoothly.  Response time of the TopoQuest website overall should be much snappier, and addition of more 1m satellite / aerial imagery is back underway!

Note (8/2/2010) - Full USGS 1:100K and 1:250K topographic map coverage of the continental US is now completed and online.  Plus, I have the new TopoQuest server under construction with a 9TB RAID6 disk array to continue adding satellite/aerial photo coverage.  Yay!

Note (7/21/2009) - Locations of places of interest (from the USGS placenames database) within the map area you are viewing are now listed below the map when viewing at 64m/pixel or below.  You can click the name of the place to go to its description page, or click the coordinates to recenter your map view on that place.

Note (6/1/2009) - We've started adding 1m/pixel aerial and satellite imagery, starting with Oregon and slowly branching out from there.  Please be patient, it takes a very long time to download and process all this imagery, as well as huge amounts of disk space!

Note (3/07/2009) - We've started adding 1:100K and 1:250K scale USGS topographic maps, starting with southern Oregon and moving out from there.  Coverage will be a bit sparse at first while we crank up automated processing of map tiles at these topographic map scales.  To view 1:100K and 1:250K scale topos, you'll need to manually select them from the sidebar (the Choose Automatically selection will not select these map scales until we have more coverage).  You can use the coverage map types to see what areas we've already processed and have online.  Also note that satellite photo coverage isn't meant to be particularly useful at this point, it's just (very) experimental.

Note (7/31/2008) - We've started adding 1:50K scale topographic maps of Canada, starting with British Columbia.  The Canadian topographic map coverage is still a bit experimental, and integration into the map viewer still needs a little work.  The map viewer will not yet automatically select the 1:50K scale topographic maps, so if you're trying to view maps in Canada, you may need to manually switch to the 1:50K Topo Maps selection in the Map Contents section of the sidebar.

Note (4/15/2008) - With the demise of non-subscription access to TopoZone (now merged with, a subscription service), we're scrambling to process all topographic maps for the US and make them available as quickly as possible.  We now have four Linux PC's crunching map data 24/7 to produce and index map data continuously.  We should be adding approximately fifteen 1 degree x 1 degree blocks of map data (approximately 1000 individual 7.5 minute 1:24000 topo maps) per day.  We're starting with southern Oregon (because that's where we live!) and northern California and branching out from there.

TopoZone URL Replacement
Do you have a Topozone map URL that you want to convert to the TopoQuest equivalent?  Simply replace with in the URL, and you'll get the equivalent map as what Topozone used to produce!  We have more details on using TopoQuest as a Topozone alternative on our Topozone Replacement page.

Copyright (C) 2008-2019 Ryan Niemi / Sunset Dynamics ... All Rights Reserved