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Welcome to the TopoQuest Map Viewer!
San Geronimo Post Office, CA is a post office located in Marin County at N38.01420° W122.66682° (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:  San Geronimo, CA    Map MRC: 38122A6
Map Center:  N38.01202°  W122.66680°    Datum: NAD83    Zoom: 32m/pixel

Places Within This Map View:
Place Type Coordinates (click to center)
San Geronimo Post OfficePost OfficeN38.01420° W122.66682°
San GeronimoPopulated PlaceN38.01326° W122.66387°
San GeronimoCivilN38.00659° W122.66582°
Maurice Thorner Memorial PreserveParkN38.01770° W122.66832°
San Geronimo Census Designated PlaceCensusN38.00671° W122.66327°
San Geronimo Valley Elementary SchoolSchoolN38.01635° W122.67172°
San Geronimo National Golf CourseLocaleN38.01353° W122.65693°
San Geronimo Valley Branch Marin County Free LibraryBuildingN38.01714° W122.67554°
Lagunitas SchoolSchoolN38.01760° W122.67545°
Green HillSummitN37.99774° W122.67204°
Roys Redwoods PreserveParkN38.02214° W122.65387°
WoodacrePopulated PlaceN38.01270° W122.64526°
Forest KnollsPopulated PlaceN38.01520° W122.68860°
Woodacre Post OfficePost OfficeN38.01271° W122.64437°
Forest Knolls Post OfficePost OfficeN38.01513° W122.68963°
Big Carson CreekStreamN37.99353° W122.68248°
Lagunitas-Forest Knolls Census Designated PlaceCensusN38.01803° W122.69130°
Mailliard CampLocaleN37.98687° W122.65748°
Woodacre Census Designated PlaceCensusN38.00517° W122.63831°
Lagunitas Post OfficePost OfficeN38.01426° W122.69726°
Sargent Cypress ForestWoodsN37.98659° W122.64971°
Marin County Fire Department Woodacre StationBuildingN38.00733° W122.63501°
Mailliard (historical)Populated PlaceN38.00659° W122.63415°
Pine Mountain RidgeRidgeN37.97770° W122.66498°
LagunitasPopulated PlaceN38.01131° W122.70221°
Poison SpringSpringN37.97631° W122.66665°
Pine MountainSummitN37.97712° W122.65206°
Peters DamDamN37.99687° W122.70415°
Peters 33-007 DamDamN37.99659° W122.70443°
Kent LakeReservoirN37.99659° W122.70443°
Kent LakeReservoirN37.97374° W122.68192°
Shafter BridgeBridgeN38.00465° W122.70860°
ShafterPopulated PlaceN38.00437° W122.70860°
San Geronimo CreekStreamN38.00465° W122.70888°
White HillSummitN37.99498° W122.62696°
Bishop Pine GroveWoodsN37.97048° W122.65248°
Bull Tail ValleyValleyN38.05687° W122.65554°
Henry E Bothin Youth CenterBuildingN38.00381° W122.62026°
Ridge TrailTrailN38.02076° W122.71332°
Bothin (historical)Populated PlaceN38.00409° W122.61915°
Skywalker Ranch Fire BrigadeBuildingN38.05927° W122.65449°
Iron SpringSpringN37.99822° W122.61992°
Pine Mountain TunnelTunnelN37.97215° W122.63720°
Crystal SpringsSpringN38.01381° W122.71721°
Barnabe MountainSummitN38.02770° W122.71610°
Happersberger PointRidgeN37.97742° W122.62832°
Tomales Y BaulinesCivilN37.96187° W122.65248°
Pecks RidgeRidgeN37.97253° W122.70173°
Shroyer MountainSummitN38.06520° W122.66999°
Bills TrailTrailN38.03548° W122.71499°
Old Sled TrailTrailN37.96604° W122.63832°
Tamarancho Boy Scout CampLocaleN37.99437° W122.61554°
Cliff PeakSummitN37.96082° W122.64794°
Lily Gulch TrailTrailN37.96104° W122.64470°
Loma AltaSummitN38.02437° W122.61248°
Cascade CreekStreamN37.98131° W122.61970°
Arequipa SanatoriumHospitalN38.00103° W122.61165°
Barnabe TrailTrailN38.02576° W122.72138°
Camp ArequipaLocaleN38.00076° W122.61165°
Irving Group Picnic AreaLocaleN38.01659° W122.72304°
Big Rock RanchLocaleN38.04881° W122.62387°
Bathtub GapGapN37.96048° W122.64332°
Lucas ValleyValleyN38.05881° W122.69888°
Irving CreekStreamN38.01659° W122.72388°
Liberty PeakSummitN37.96159° W122.63943°
Big RockPillarN38.04826° W122.62220°
Blue RidgeRidgeN37.98742° W122.61470°
Irving (historical)Populated PlaceN38.01687° W122.72443°
Loma Alta PreserveParkN38.01326° W122.60859°
NicasioPopulated PlaceN38.06159° W122.69860°
Nicasio Volunteer Fire Protection DistrictBuildingN38.06226° W122.69800°
Nicasio Census Designated PlaceCensusN38.06062° W122.70082°
Nicasio Post OfficePost OfficeN38.06224° W122.69851°
Barnabe CreekStreamN38.01965° W122.72582°
Stairstep Falls TrailTrailN38.03381° W122.72249°

Note: Coordinates listed above are datum selected on the sidebar.
Click on map to:
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Map contents:
Choose Automatically
Overall Coverage
1:24K Coverage (US)
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1:250K Topo maps (US)
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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.

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