Locations

SiteCountyStateRHI5RHI10RGI5RGI10Last measurement
Fillmore Glen State ParkCayugaNew York120.05109.560.220.1105/13/2017
Walhalla Fish HatcheryOconeeSouth Carolina120.80-0.62-01/19/2013
Gravel Lick Bridge To Mill Creek River AccessClarionPennsylvania81.00-0.92-10/16/2008
Lisha Kill Forest PreserveSchenectadyNew York112.20-1.25-09/06/2015
Vicente Flat TrailMontereyCalifornia151.92-1.32-01/19/2025
Foothills Trail (Toxaway, Rock Creek)TransylvaniaNorth Carolina136.80-1.52-12/16/2012
Morgan Hill State ForestCortlandNew York106.86-1.60-05/20/2017
Hela Bravo Hollis Botanical GardenTehcanPuebla21.72-1.90-01/11/2023
Bluethenthal Wildflower PreserveNew HanoverNorth Carolina82.40-1.96-04/01/2013
Glimmerglass State ParkOtsegoNew York91.00-2.20-09/21/2016
St. Joe River RoadShoshoneIdaho186.18-2.22-07/08/2024
Valles Caldera National PreserveSandovalNew Mexico117.06-2.36-01/22/2025
Robin Hill Nature PreserveOrleansNew York57.56-2.63-06/09/2019
Arizona-Sonora Desert MuseumPimaArizona24.64-2.69-02/07/2017
Root GlenOneidaNew York96.20-2.89-04/02/2016
Storm Pass TrailLarimerColorado49.02-3.01-06/16/2016
Hoh Rainforest Visitor CenterJeffersonWashington221.08-3.15-09/17/2020
Storm King State ParkOrangeNew York126.86119.113.221.6104/07/2019
Leita Thompson Memorial ParkFultonGeorgia117.94-3.45-03/02/2013
Chickasaw Trace ParkMauryTennessee112.96-3.66-09/02/2023
Sand Barrens And Oak-Pine Forest PreserveOuachitaArkansas65.86-3.67-06/01/2014
Felsenthal Nationalwildlife RefugeUnionArkansas43.98-3.67-04/26/2014
Horse CreekWhiteGeorgia111.82-3.68-03/27/2013
Clark RidgeFranklinMassachusetts124.36-3.80-03/19/2004
Watkins Glen State ParkSchuylerNew York113.74105.383.891.9402/11/2019
Wawa Area-Voyager And Nokomis TrailsAlgoma DistrictOntario65.02-3.92-08/10/2013
Cole’S WoodsWarrenNew York112.44-3.98-05/24/2020
Shu SwampNassauNew York116.98102.083.981.9904/22/2016
Watson Lake CampgroundNoneYukon77.46-4.07-08/05/2012
Owasco Flats Nature PreserveCayugaNew York100.8086.564.092.0505/17/2021
Black River Metro ParkLorainOhio113.90-4.13-04/01/2009
Green River Corrider - UTUintahUtah30.28-4.13-07/27/2015
Floodwood State ForestClearwaterIdaho195.76-4.18-07/09/2024
Guilford CourthouseGuilfordNorth Carolina121.48117.904.242.1211/24/2012
Verona Beach State ParkOneidaNew York106.06-4.27-05/07/2018
UNCA Botanical Gardens, Campus And ForestBuncombeNorth Carolina114.78-4.32-01/12/2013
Hyde Memorial ParkSanta FeNew Mexico108.06-4.46-07/18/2024
Hart’S WoodsMonroeNew York122.50-4.51-03/24/2019
Chittenango Falls State ParkMadisonNew York108.64-4.58-08/16/2018
Pacific CreekTetonWyoming73.10-4.64-06/21/2016
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